True Talent Solutions Partners
Full Stack Engineer
Backend-leaning full-stack engineer building product features for evaluating and debugging AI agents in production — agent investigations, evals, trajectory replay — plus platform work like workspaces, billing, and SDKs. On-site in San Francisco; stack is TypeScript with React/Next.js plus Python or Node.js.
- Compensation
- $230K–$300K / yr
- Location
- San Francisco
- Work setup
- Onsite
- Seniority
- Not specified
- Employment
- Full time
- Experience
- Not specified
- Category
- Fullstack
- Posted
Skills
Must have
- 5–8 years of full-stack product engineering experience, backend-leaning, with a track record of shipping production software end-to-end
- Strong TypeScript and React or Next.js skills
- Experience with Python or Node.js
- Experience building polished product interfaces, designing clean APIs, modeling data, and debugging production issues across the stack
- Hands-on experience with AI agents, LLM-powered products, or agentic systems (LLM APIs, evaluation/debugging tools, or agent architectures)
- Ability to work directly with customers and use their needs to inform product decisions
- Strong computer science fundamentals and experience delivering high-quality software in a product-focused environment
Full description
About the Role
Join a product engineering team building software that helps organizations improve the reliability of AI agents in production. This backend-leaning full-stack role combines customer discovery with hands-on product development, from APIs and data models to polished user-facing workflows.
What You'll Do
- Build product experiences for agent investigations, evaluation workflows, trajectory debugging, verification, and replay.
- Own problems end-to-end by learning from customers, defining solutions, shipping them, and iterating based on feedback.
- Develop APIs, data models, internal systems, and product surfaces across the stack, with an emphasis on backend engineering.
- Build systems that support large-scale investigations of production traces.
- Develop platform capabilities such as workspaces, permissions, billing, usage, SDKs, and terminal-first developer experiences.
- Work with AI teams to understand agent failures and translate those insights into product improvements.
What We're Looking For
- Five to eight years of full-stack product engineering experience, with a backend-leaning profile and a track record of shipping production software end-to-end.
- Strong TypeScript and React or Next.js skills, plus experience with Python or Node.js.
- Experience building polished product interfaces, designing clean APIs, modeling data, and debugging production issues across the stack.
- Hands-on experience with AI agents, LLM-powered products, or agentic systems, including familiarity with LLM APIs, evaluation or debugging tools, or agent architectures.
- Ability to work directly with customers and use their needs to inform product decisions.
- Strong computer science fundamentals and experience delivering high-quality software in a product-focused environment.
Compensation & Benefits
Base salary: $230,000 to $300,000 annually. Visa sponsorship is available.
Location
On-site in San Francisco, California, United States.